曝光台 注意防骗
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scale deflection. During the approach, any time a full scale vertical or lateral
deflection occurs or a NAV UNABLE RNP alert occurs and suitable visual
reference has not been established, a missed approach must be executed.
The final approach is similar to the ILS final approach, however the IAN mode
does not support dual autopilot coupled approaches. Therefore, the autopilot
should be disconnected no lower than the minimum use height for single autopilot
altitude specified in the Limitations chapter of the FCOM. Set missed approach
altitude after glide path capture.
If the final approach course is offset from the runway centerline, maneuvering to
align with the runway centerline is required. When suitable visual reference is
established, the airplane should continue following the glide path (GP) angle
while maneuvering to align with the runway.
With the autopilot engaged below 200 feet radio altitude, an amber NO
AUTOLAND status annunciation is displayed on the PFD and on the HUD to
remind the crew that the autopilot must be disengaged before landing.
Minimum Descent Altitude (MDA(H))/Decision Altitude (DA(H))
When specifically authorized by the instrument procedure and regulatory
authority, approaches may be flown to the following minima:
• a published VNAV DA(H)
• a published MDA(H) used as a decision altitude.
When either of the above minima are not specifically authorized, use the MDA(H)
specified for the instrument procedure.
When reaching the DA(H) or MDA(H), be prepared to disengage the autopilot,
disconnect the autothrottle and land or execute an immediate go-around.
Note: If using an MDA(H), initiating a missed approach approximately 50 feet
above MDA(H) may be necessary to avoid descending below the MDA(H)
during the missed approach, if required for the procedure or by the
regulatory authority.
October 31, 2006
777/787 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
FCT 777/787 Preliminary (TM) 5.49
The pilot monitoring should expand the instrument scan to include outside visual
cues when approaching DA(H) or MDA(H). Do not continue the approach below
DA(H) or MDA(H) unless the airplane is in a position from which a normal
approach to the runway of intended landing can be made and suitable visual
reference can be maintained. Upon arrival at DA(H) or MDA(H) or any time
thereafter, if any of the above requirements are not met, immediately execute the
missed approach procedure.
When suitable visual reference is established, maintain the descent path to the
flare. Do not descend below the visual glide path. While VNAV PTH guidance
may still be used as a reference once the airplane is below DA(H) or MDA(H), the
primary means of approach guidance is visual.
October 31, 2006
777/787 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
5.50 FCT 777/787 Preliminary (TM)
Instrument Approach Using V/S or FPA
777-200 - 777-300ER
At MDA(H)
• Intercept landing
profile and
disengage autopilot
Approaching intercept heading
• Flaps 5
• Flaps 5
On RADAR vectors
• HDG SEL
• Pitch mode (as needed)
Intercept heading
• Arm LNAV or select
other roll mode
Descend to MDA(H)
• Landing flaps (2 engine,
optional 1 engine)
• Set V/S or FPA
• Do the Landing checklist
• Flaps 1
FAF
Enroute to fix
• LNAV or other roll mode
• VNAV or other pitch mode
Inbound (Approximately 2 NM)
• Gear down
• Flaps 20
(optional landing flaps 1 engine)
• Arm speedbrake
• Set MDA(H)
Approximately 300 feet above MDA(H)
• Set missed approach altitude
October 31, 2006
777/787 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
FCT 777/787 Preliminary (TM) 5.51
787-8
TBD
October 31, 2006
777/787 Flight Crew Training Manual
Approach and Missed Approach
Copyright © The Boeing Company. See title page for details.
5.52 FCT 777/787 Preliminary (TM)
Approach Preparations for using V/S or FPA
Select the approach procedure from the ARRIVALS page of the FMC. Tune and
identify appropriate navaids. If additional waypoint references are desired, use the
FIX page. To enable proper LNAV waypoint sequencing, select a straight-in
intercept course to the FAF when being radar vectored to final approach.
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787机组训练手册Flight Crew Training Manual 787(85)
